Region Extraction by Averaging and Thresholding,
Abstract
Regions in a picture that differ texturally from their surroundings can often be extracted by (1) applying a local operation to every point of the picture, (2) averaging the results, and (3) thresholding. This approach will usually not work if there are too many differently textured regions present, since the average for one type of region may then be indistinguishable from the average resulting from a mixture of two other types that adjoin. The amount of averaging that should be used depends on the coarseness of the texture. An approach to choosing this amount automatically was investigated, but the results were not as good as those obtained with a fixed, high degree of averaging.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1974
- Accession Number
- ADA005320
Entities
People
- Azriel Rosenfeld
- Joan S. Weszka
- Larry S. Davis
Organizations
- University of Maryland